M30245FCGP#U1 Renesas Electronics America, M30245FCGP#U1 Datasheet - Page 259

• Manufacturer Part Number: M30245FCGP#U1
• Description: IC M16C/24 MCU FLSH 128K 100LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/20r

Specifications of M30245FCGP#U1

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, SSI, UART/USART, USB
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 82
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 100-LQFP
• Package: 100LQFP
• Family Name: R8C
• Maximum Speed: 16 MHz
• Operating Supply Voltage: 3.3 V
• Data Bus Width: 16 Bit
• Number Of Programmable I/os: 82
• Interface Type: USB/UART/I2C/SPI
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

M30245 Group
Applications
Figure 1.209. Example configuration of External USB components
Figure 1.210. Attach/Detach function connections
Rev.2.00
REJ03B0005-0200
USB Transceiver
Attach/Detach Function
In order to meet the impedance matching requirements of the USB Specification, a 27Ω-33Ω resistor must be added
to USB D+ (pin 4) and to USB D- (pin 5). In addition, capacitors connected between USB D+ and USB D- and Vss may
need to be added for rise/fall time matching and edge control. These capacitors, if necessary, can be placed between
the mcu and the 27-33Ω resistors. A coupling capactior may also be placed between D+ and D-. Their configuration and
values will depend on the PCBs layout. Perform the approriate USB testing to determine the correct component
placement. An example placement of external components is shown in Figure 1.209.
The Attach/Detach Function can be used to attach or detach a USB device from the host without physically disconnecting
the USB cable. When attaching a USB device, the attach/detach register should be set to 03
before the USB Enable bit is set. Similarly, when detaching the device from the host , the attach/detach register should
be set to 01
If you do not set the Attach/Detach bit (bit 1 at address 001F
D+ is connected to P9
Note: If the D+ pin is connected to UVcc, this mode will not work.
Hardware connections are shown in Figure 1.210.
Oct 16, 2006
16
Attach is connected to D+ through 1.5K resistor
Attach/Detach mode disabled.
when disabling the USB block.
ATTACH [P9
page 257 of 264
0
/ATTACH through a 1.5 K resistor in compliance with the USB specification.
UV
Note 1: Capacitor and resistor values and their configuration depend on PCB layout.
Note 2: Connecting any type of choke coil to D+ or D- is not recomended.
CC
0
]
Transceiver
M30245
USB
D-
UVcc
D+
1.5K
1.5K
49pF
49pF
16
27-33
27-33
) to HIGH, the system will default to its normal mode.
0.47uF
D+ (Pin 4 M30245)
D+ (Pin 4 M30245)
16
at the same time or
Usage Notes